AI agents call nasa_epic to retrieve information from Nasa without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries satellite imagery data from NASA's EPIC instrument. It has no side effects, does not modify data, execute code, delete resources, or commit financial obligations. It is a straightforward read operation that fetches visual data about Earth.
From the tool's definition Tool name 'nasa_epic' and description 'Earth Polychromatic Imaging Camera - views of Earth' indicate retrieval of Earth imagery data. The verb 'views' and context of an imaging camera confirm data retrieval with no modification or execution capability.
Attacks that exploit this kind of access
Earth Polychromatic Imaging Camera - views of Earth. It is categorised as a Read tool in the Nasa MCP Server, which means it retrieves data without modifying state.
Register the Nasa MCP server in PolicyLayer and add a rule for nasa_epic: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Nasa. Nothing to install.
nasa_epic is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the nasa_epic rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for nasa_epic. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
nasa_epic is provided by the Nasa MCP server (@programcomputer/nasa-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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